I will try and crawl under it tomorrow and snap some more pics. I am not sure what they are called but there are two rods that go from the rear end forward that are designed to keep rear end from rolling, slight play in one bushing but not the other. I plan to have dodge look at those Monday.
Yes they are firestone airlifts. Immune +\- 20 lbs in them when I am towing otherwise keep them deflated which is where they are in the picture. I have test driven both with and without air to see if there is a difference. Not really possible to install improperly, the bags are made to fit these specific springs, pretty much put them in and run airline.